My z is my daily driver but for family duties we have an x3 f25 35d msport. It sure does shift when in sport+ mode . I love it almost as much as the z, but nowt beats the roof down on a sunny day in the z.
I jumped into a new E220d Amg line last week, more than impressed with the interior. I absolutely love the whole thing actually even if it does fill up from the greasy black pump. I'm wondering what the Z will be like when I get back into it in comparison. She hasn't had much use recently, apart from a trip over Christmas